09-02-2008
time_diff (){
start_mins=`echo "$1"|awk -F":" '{print $1*60+$2}'`
end_mins=`echo "$2"|awk -F":" '{print $1*60+$2}'`
((elapsed_mins = $end_mins - $start_mins))
if [ "$elapsed_mins" -lt 0 ]
then
((elapsed_mins += 1440))
fi
if [ "$elapsed_mins" -gt 59 ]
then
print $((elapsed_mins / 60))
fi
}
last_time=`ls -lrt|tail -1|awk '{print $8}'`
curr_time=`date "+%k:%m"`
time_diffrence=`time_diff $last_time $curr_time`
if [ "$time_diffrence" -lt "24 ]
then
do whatever you want
fi
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LEARN ABOUT OPENSOLARIS
igawk
IGAWK(1) Utility Commands IGAWK(1)
NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO
gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWgawk |
+--------------------+-----------------+
|Interface Stability | Volatile |
+--------------------+-----------------+
NOTES
Source for gawk is available on http://opensolaris.org.
Free Software Foundation Nov 3 1999 IGAWK(1)